One Piece. Big Score. Book 24. Those Who Were Forgotten by Dressrosa

Monkey D. Luffy and Trafalgar Law form an alliance, planning to challenge one of the Emperors of the Sea.

But to bring their plan to life, the newly formed comrades must first capture a scientist named Caesar, without whom the Great Corsair Doflamingo cannot create artificial devil fruits. Cornering the mad genius and destroying the 'SAD' production facility, the rubber captain and his friends successfully complete the first part of their plan.
However, Doflamingo, sitting on the throne of Dressrosa, is not going to stay aside...